Shock absorber for motor vehicles



Jan. 8, 1935. a A. MULLER 1,987,411

SHOCK ABSORBER FOR MOTOR VEHICLES Filed May 1. 1934 INVENTOR ADAM MULLER ATTORN EY Patented Jan. 8, 1935 UNITED STATES PATENT OFFICE 1,987,411 SHOCK ABSORBER FOR MOTOR VEHICLES Adam Muller, Bronx,'N. Y. Application May 11, 1934, Serial No. 723,333 si oiaims; (c1. 267-31) This invention relates to new and useful im-- Fig. 2 is a longitudinal sectional view of the movements in a shock absorber for motor veshock absorber, per se, illustrated in Fig. 1. hicles and the like. Fig. 3 is a transverse sectional view taken on It is proposed to arrange the shockab'sorber theline 3-3 of Fi Y 6 in such a manner that it maybe-us d, i s "g. 4 is a fragmentary perspective view of the 5 u ction with the springs of 'avehicle, or may Shock absorber illustrated with the flexible base be used auxiliary to the springs as for example mber removed. at the bumpers or other places, I Fig. 5 is a perspective View of the still flexible I Still further the invention proposes the conp, D l I l0 struction of a shock absorber which is charac Fig. 6 is a perspective view of the stiff flexible 10 terized by a longitudinal casing of resilient ma ba member D terial o en at one end and containing a remov- 7 is a p rsp t v vi w f one f the brackable inflatable inner tube, and associated with ets which is associated- With the ends of the a still flexible strip and sti'ii' flexiblejbase'member vioe o t p p se f d n t e ds in a fix d in a particular fashion so as to form an efficient unit and for h p rpose of providing for the 'at- 15' unit. I i tachment of the device upon ooacting objects.

More particularly the inventi n" 'r a The shock absorber according to this invention arrangement whereby the stiirnexible strip isin may e p sed w e he h s s 0 of a intimate contact with the bottom of the casing vehicle and the p s t su h as sprin and ha t edges prgjegfing" nd i ct d 11. So that the device may better be understood, 0 with the casing by a flexible band laced through it s p d t hat th spr 11-is arri d Openings in the strip a d r d th casing SQ upon the axle 12 in a manner so that the chassis that the flexible base may b associatediwith'the is supported on the side The shook absorber is edges of the strip for connectionot these parts. interposed between the pr 1 and the cha sis I 23 sun furth the i ti 9,1 vproposes an 12 and is held in place in such a manner so as 25 arrangement whereby a resilient tread is atto aid the resilient a t of the p i i th tached upon the top of the casing over the flexible resilient s pp t of h hass s s nly band so as t form a protection for t ndone of the many uses for the invention, since it to increase it durability 1, may be associated with other parts requiring still further th i ve t ,1 proposes an resilient action such as it may be associated. with r ngement; whereby th stifi flexible base i either of the bumpers of the vehicle, interposed acteri'zed by side flanges bent to present opposed tw p ts b e to pifieme t h es l n grooves adapted for slidable engagementupon 37 61111595 e p fp 0 pthe edges of the flexible strip for the engagement Plemehtmg nd i i g r sili n c i n.

36 of these -t r I More particularly the shock absorber accord- 5 Still further the invention also pro oses the g to v i n pris s a lor itudina particular method for attaching the ends of the Casmg 13 0 rei1ient ma elia Open a n en casing, the are flexible strip, and the see flex holding an inflatable inner tube ible base member together in .a unit. v V lglrll ppid With a walvg czfitrollgdtsltem litl fog 40 Still further the invention also ropos'es the 1S 5 em 15 ex en 5 mug 9 51.6 0 construction of a device'as mentior ied which is. o e 13 e t l illustratefi 3 and i we my mam-l 22%; against; inertial; factured and sold at a reasonable cost. l

. r the side of the casing. Details of this mounting 33 fi g i of 3 z will not be taken up in this specification since a Jec van ,ages re it' is very similar to the mountings of valve con- F Wm w to W followmg descnptlqn and trol'stems of the inner tubes of tires, which are mcompmuig drawmg} and to the appended generally known. The inner tube 14 may be reereinaf er ur er escri e In the accompanying drawing firming The longitudinal casing 13 is arranged upon a terial pa f this disclosure? stiff flexible strip 18 of material, such as metal,

Fig. l a side elevational view of a vehicle which is of a width so as to have its edges 18 spring equipped with a shock absorber aocordprojecting as clearly illustrated in Fig. 3. A 56 ing to this invention. flexible band 19 of similar material is laced 5 through openings 20 formed in the strip 18 and is laced around the casing 13 so as to connect these parts in a unit and limit the possible expansion of the casing 13. Necessarily the casing must be constructed of expandable material such as rubber. The purpose of the laced band 19 is two-fold, 1) the attachment of the casing upon the strip, and (2) the limiting of the expansion. A resilient tread 21 is attached upon the top of the casing over portions of the band 19 so as to cover up the band and furthermore act as a reinforcement for the top of the casing 13. This tread may be secured in position by cementing,

vulcanizing, or any other known process.

The strip 18 and the casing 13 is associated with a stiff flexible base member 22 having flanges 22 for engagement upon the sides of the casing 13 and a bottom portion 22 for extending com-.

pletely across the bottom of the casing 13. This bottom portion 22 serves to cover and protect the lower portions of the flexible band 19. The flanges 22 are formed so as toproduce a groove or passage into which the edges 18' of the strip 18 may engage. This arrangement allows for the disengagement of these parts by longitudinal sliding as hereinafter further described. Each of the flanges 22 are formed witha plurality of cuts 23 extended infrom the top edges thereof and provided with an arrangement whereby the flanges are rendered flexible so that the bottom portion 22 may flex or bend as conditions may require. One of the flanges 22 is formed with an opening 24 adapted for the passage of the valve control stem 15. Examining Fig. 3 it should be seen that the valve controlled stem 15 is below the top edge of the flange 22 and for this reason the opening 24 is necessary. The casing 13, the strip 18, and the base member 22 are connected into a unit by bolts 25 engaged through the ends thereof.

A bracket 26 is associated with each end of the shock absorber for the purpose of protecting the ends, and for better holding the ends in a unit. Each of these brackets are formed with a top arm 26' extending across the top of the casing 13 and a vertical end arm 26 extending down the ends of the casing, the ends of the strip 18, and the base member 22. The bolts 25 also engage through the top arm 26 of the brackets. The brackets 26 are formed with side arms 26 projecting from the sides of the top arm 26' and extending downwards and terminating in threaded portions 26 constituting a provision by which the shock absorber may be conveniently mounted upon some coacting element, as for example, the spring 11. It should be noted that the threaded portions 26' are disposed on opposite sides of the spring 11. A transverse bar 2'7 is engaged acrosseach of the ends of the shock absorber and located beneath the spring 11; and the threaded portions 26 on each of the brackets extend through the bars 27. Nuts 28 are threadedly engaged upon the lower ends of the threaded portions 26 which serve to hold the shock absorbers in position.

The shock absorber illustrated in Fig. 1 is in condition to function and add to the resilientv action of the spring 11. If for any reason the inner tube 14 becomes punctured, it may be removed as follows: First the nuts 28 should be disengaged from the threaded portions 26, the transverse bars 27 removed, and then the shock absorber removed from its position upon the spring 11. Next one of the bolts 25, the bolt upon the end of the shock absorber which has the open end 13' of the casing, should be removed so as to free the casing 13, the strip 18, and the bottom portion 22 of the bracket 22. Then the opening 13 may be spread open so that the inner tube may be removed.

The stem 15 must be freed so as to be capable of going into the casing 13 upon the removing of the inner tube. This is possible by first removing the nut 17 similar to the arrangement in tires wherein the inner tubes are provided with threadedstems engaging into the shoes'or other similar objects.

If desired the other bracket 26 may also be removed and then the base member 22 may be may also be so arranged as to cover the upper surface of brackets 26.

While ,I have shown and described .the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within thescope of the invention as defined in the appendedclaims.

Havingthus described my invention, what I claim as new, and desire to secure by United StatesjLetters Patent is:-

1...A shock absorber, comprising a longitudinal casing of resilient material openat one end, an, inflatable inner tube within said casing and having a valve controlled stem for air. extending through the side of said casing, a stiff flexible strip in intimate-contact with the bottom of said casing and having its edges projecting, a flexible band laced through openings in said strip and around said casing, a resilient tread attached ,on top or said casing over portions of said band, a

stifl flexible base member with flange. members,

bent in a manner forminga. sliding fit over the edges of, said strip, and bolts engaged through the ends of said casing, said strip and said base member. I .1

2. A shock absorber, comprising a longitudinal casing of resilient material open at one end, an

inflatable inner tube within said casing andhaving a valve controlled stem for air extending through the side of said casing, a stiff flexible stripinintimate contact with'the bottom of said casing and having its edges projecting, a flexible bandlaced through openings in said strip and around said casing, a resilient tread attached on topv of said casing over portions of said band, a

stiif flexible base member with flange members bent in a manner forming a sliding flt over. the edgesfof said strip, and bolts engaged through the'ends of said casing, said strip and said asen'said longitudinal casing having ends flattened out.

3. A shock absorber, comprising a longitudinal casingof resilient material open at one end, an inflatable inner tube within said casingand having'a valve controlled stem for air extendingthrough the side of said casing, a stiff flexible strip in intimate contact with the bottom of said casing and having its edges projecting, a flexible band laced through openings in said strip and around said casing, a resilient tread attached on top of said casing over portions'of said band, a stiff flexible basemember with flange members bent in a manner forming a sliding fit over the edges of said strip, and bolts engaged through the ends of said casing, said strip and said base member, said inflatable inner tube being removable from the opened end of said casing upon the removal of the bolt engaged through the ends of the casing, the strip and the base member.

4. A shock absorber, comprising a longitudinal casing of resilient material open at one end, an inflatable inner tube within said casing and having a valve controlled stem for air extending through the side of said casing, a stiff flexible strip in intimate contact with the bottom of said casing and having its edges projecting, a flexible band laced through openings in said strip and around said casing, a resilient tread attached on top of said casing over portions of said band, a stiff flexible base member with flange members bent in a manner forming a sliding fit over the edges of said strip, and bolts engaged through,

the ends of said casing, said strip and said base member, said resilient tread being vulcanized in position upon said casing.

5. A shock absorber, comprising a longitudinal casing of resilient material open at one end, an inflatable inner tube within said casing and having a valve controlled stem for air extending through the side of said casing, a stiff flexible strip in intimate contact with the bottom of said casing and having its edges projecting, a flexible band laced through openings in said strip and around said casing, a resilient tread attached on top of said casing over portions of said band, a stiff flexible base member with flange members bent in a manner forming a sliding fit over the edges of said strip, and bolts engaged through the ends of said casing, said strip and said base member, the side flanges of said stiff flexible base member being formed with a plurality of cuts extended in from the top edges thereof.

6. A shock absorber, comprising a longitudinal casing of resilient material open at one end, an inflatable inner tube within said casing and having a valve controlled stem for air extending through the side of said casing, a stiff flexible strip in intimate contact with the bottom of said casing and having its edges projecting, a flexible band laced through openings in said strip and around said casing, a resilient tread attached on top of said casing over portions of said band, a stiff flexible base member with flange members bent in a manner forming a sliding fit over the edges of said strip, and bolts engaged through the ends of said casing, said strip and said base member, the side flanges of said stiff flexible base member being formed with a plurality of cuts extended in from the top edges thereof, and said stem engaging through a cut formed in one of said flanges.

'7. A shock absorber, comprising a longitudinal casing of resilient material open at one end, an

inflatable inner tube within said casing and having a valve controlled stem for air extending through the side of said casing, a stiff flexible strip in intimate contact with the bottom of said casing and having its edges projecting, a flexible band laced through openings in said strip and around said casing, a resilient tread attached on top of said casing over portions of said band, a stiff flexible base member with flange members bent in a manner forming a sliding fit over the edges of said strip, bolts with nuts threaded thereon and engaged through the ends of said casing, said strip and said base member, and brackets associated with the bolts of said shock absorber and held in position with said nuts.

8. A shock absorber, comprising a longitudinal casing of resilient material open at one end, an inflatable inner tube within said casing and having a valve controlled stem for air extending through the side of said casing, a stiff flexible strip in intimate contact with the bottom of said casing and having its edges projecting, a flexible band laced through openings in said strip and around said casing, a resilient tread attached on top of said casing over portions of said band, a stiff flexible base member with flange members bent in a manner forming a sliding fit over the edges of said strip, bolts with nuts threaded thereon and engaged through the ends of said casing, said strip and said base member, and brackets associated with the bolts of said shock absorber and held in position with said nuts; each of said brackets comprising a top arm extending across the top of said casing and connected with an end arm extending down the end of the casing, the strip and the base member.

9. A shock absorber, comprising a longitudinal casing of resilient material open at one end, an inflatable inner tube within said casing and having a valve controlled stem for air extending through the side of said casing, a stiff flexible strip in intimate contact with the bottom of said casing and having its edges projecting, a flexible band laced through openings in said strip and around said casing, a resilient tread attached on top of said casing over portions of said band, a stiff flexible base member with flange members bent in a manner forming a sliding fit over the edges of said strip, bolts with nuts threaded thereon and engaged through the ends of said casing, said strip and said base member and brackets associated with the bolts of said shock absorber and held in position with said nuts, each of said brackets comprising a top arm extending across the top of said casing and connected with an end arm extending down the end of the casing, the strip and the base member, and side portions projecting from the sides of said top arm and terminating in threaded portions for the attachment of the shock absorber upon some object.

ADAM MULLER. 

